Let me first admit that I havent been following this all that much (except the threads on here which can be dangerous) and I dont proclaim to know all the in's/out's of the 1st Amendment or much about the Laws.
So with that being said, if a public park or other gathering places is were the protesters sent up then to me it seems like it is ok (legal) but if those places have laws/rules (no camping, closing hours, ect) and the protesters violate those then are they not breaking the law? Also if in downtown Seattle they are blocking traffic doesn't the SPD have the responsibility and duty to act to keep the seen/area safe for all citizens?